Full list of all 75 The Elder Scrolls V: Skyrim achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 3 DLC packs containing 25 achievements.
Capture Fort Sungard or Fort Greenwall
Pick 50 locks and 50 pockets
Escape from jail
Bounty of 1000 gold in all nine holds
Reach Level 50
Complete "Hail Sithis!"
Have 100,000 gold
Complete "Bound Until Death"
Join the Dark Brotherhood
Returned the Thieves Guild to its former glory
Get married
Find 13 Standing Stones
Clear 50 dungeons
Capture Solitude or Windhelm
Learn 20 shouts
Complete "Dragonslayer"
Complete "The Fallen"
Complete 10 side quests
Complete 50 Misc Objectives
Absorb 20 dragon souls
Join the Stormcloaks or the Imperial Army
Select a Standing Stone blessing
Read 50 Skill Books
Discover 100 Locations
Complete "Glory of the Dead"
Chop wood, mine ore, and cook food
Become a member of the Circle
Join the Companions
Complete "Darkness Returns"
Successfully persuade, bribe, and intimidate
Join the Thieves Guild
Get a skill to 100
Buy a house
Reach Level 25
Acquire a Daedric Artifact
Complete "The Eye of Magnus"
Complete "Revealing the Unseen"
Make a smithed item, an enchanted item, and a potion
Complete "Elder Knowledge"
Join the College of Winterhold
Complete "Alduin's Wall"
Reach Level 10
Complete "Diplomatic Immunity"
Learn all three words of a shout
Complete "The Way of the Voice"
Absorb a dragon soul
Complete "Bleak Falls Barrow"
Reach Level 5
Complete "Unbound"
Collect 15 Daedric Artifacts
Arrive on Solstheim
Complete "The Temple of Miraak"
Complete "The Path of Knowledge"
Complete "At the Summit of Apocrypha"
Learn all 3 words of Dragon Aspect
Learn the secrets of 5 Black Books
Craft an item out of Stalhrim
Tame and ride 5 dragons
Own a house in Raven Rock
Discover 30 locations on the island of Solstheim
Acquire 11 werewolf perks
Acquire 11 vampire perks
Defeat a Legendary Dragon
Complete "Awakening"
Complete "Beyond Death"
Complete "Kindred Judgment"
Complete "Lost to the Ages"
Learn all three words of Soul Tear
Use the special power of Auriel's Bow
Change your face
Build three wings on a house
Buy a plot of land
Adopt a child
Buy three plots of land
Build three houses